DE3261476D1 - Process for obtaining purified formaldehyde - Google Patents

Process for obtaining purified formaldehyde

Info

Publication number
DE3261476D1
DE3261476D1 DE8282108905T DE3261476T DE3261476D1 DE 3261476 D1 DE3261476 D1 DE 3261476D1 DE 8282108905 T DE8282108905 T DE 8282108905T DE 3261476 T DE3261476 T DE 3261476T DE 3261476 D1 DE3261476 D1 DE 3261476D1
Authority
DE
Germany
Prior art keywords
methylal
rectification
pressure
methanol
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE8282108905T
Other languages
English (en)
Inventor
Wolfgang Hans Eduard Dr Muller
Manfred Dr Kaufhold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huels AG
Original Assignee
Chemische Werke Huels AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Priority to DE8282108905T priority Critical patent/DE3261476D1/de
Application granted granted Critical
Publication of DE3261476D1 publication Critical patent/DE3261476D1/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00—Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/48—Preparation of compounds having groups
    • C07C41/58—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE8282108905T 1981-11-28 1982-09-25 Process for obtaining purified formaldehyde Expired DE3261476D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8282108905T DE3261476D1 (en) 1981-11-28 1982-09-25 Process for obtaining purified formaldehyde

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813147320 DE3147320A1 (de) 1981-11-28 1981-11-28 Verfahren zur gewinnung reinen methylals
DE8282108905T DE3261476D1 (en) 1981-11-28 1982-09-25 Process for obtaining purified formaldehyde

Publications (1)

Publication Number Publication Date
DE3261476D1 true DE3261476D1 (en) 1985-01-17

Family

ID=6147499

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19813147320 Withdrawn DE3147320A1 (de) 1981-11-28 1981-11-28 Verfahren zur gewinnung reinen methylals
DE8282108905T Expired DE3261476D1 (en) 1981-11-28 1982-09-25 Process for obtaining purified formaldehyde

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19813147320 Withdrawn DE3147320A1 (de) 1981-11-28 1981-11-28 Verfahren zur gewinnung reinen methylals

Country Status (5)

Country Link
US (1) US4385965A (de)
EP (1) EP0080572B1 (de)
JP (1) JPS58103331A (de)
AT (1) ATE10617T1 (de)
DE (2) DE3147320A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528124A1 (de) * 1985-08-06 1987-02-12 Huels Chemische Werke Ag Verfahren zur entfernung von n-butyraldehyd aus gasstroemen
DE4435176A1 (de) * 1994-09-30 1996-04-04 Basf Ag Verfahren zur Herstellung von Methylglyoxaldimethylacetal
JP2786823B2 (ja) * 1994-10-07 1998-08-13 旭化成工業株式会社 メチラ−ルの精製法
US6379507B1 (en) * 1998-08-03 2002-04-30 Asahi Kasei Kabushiki Kaisha Process for producing methylal
US6015875A (en) * 1998-08-11 2000-01-18 Catalytic Distillation Technologies Process for making acetals
EP2450336A1 (de) * 2010-11-09 2012-05-09 INEOS Paraform GmbH Verfahren zur Herstellung von reinem Methylal
CN102557898A (zh) * 2010-12-20 2012-07-11 天津天大天久科技股份有限公司 一种高浓度甲缩醛的制备方法及装置
CN102417442A (zh) * 2011-10-25 2012-04-18 中国海洋石油总公司 一种高纯度甲缩醛的制备方法
CN104447240A (zh) * 2014-11-10 2015-03-25 中国海洋石油总公司 一种制备高纯度甲缩醛的方法
CN104761430A (zh) * 2015-03-12 2015-07-08 赛鼎工程有限公司 一种变压热耦合精馏分离甲缩醛与甲醇的工艺
GB2536480B (en) 2015-03-17 2019-09-04 Tate & Lyle Tech Ltd DMF Distillation
DE102018101216A1 (de) 2018-01-19 2019-07-25 Rheinisch-Westfälische Technische Hochschule (Rwth) Aachen Verfahren zur Trennung von Oxymethylenethern
CN110642687A (zh) * 2019-11-11 2020-01-03 无锡赫利邦化工科技有限公司 一种用于聚甲氧基二甲醚的合成装置及其合成工艺

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1850836A (en) * 1927-01-03 1932-03-22 Distilleries Des Deux Sevres Process for the manufacture of acetal
US3077441A (en) * 1958-07-26 1963-02-12 Sumitomo Chemical Co Method of rectifying a formaldehydecontaining solution
DE1290534B (de) * 1965-12-01 1969-03-13 Karl Fischer App U Rohrleitung Verfahren zur Gewinnung von hochkonzentrierten Formaldehydloesungen

Also Published As

Publication number Publication date
JPS58103331A (ja) 1983-06-20
EP0080572B1 (de) 1984-12-05
DE3147320A1 (de) 1983-06-01
EP0080572A1 (de) 1983-06-08
US4385965A (en) 1983-05-31
ATE10617T1 (de) 1984-12-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: HUELS AG, 4370 MARL, DE

8339 Ceased/non-payment of the annual fee